On 26 May 2017, at 13:51, Marat Khalili <mkh@rqc.ru> wrote:
I have an interesting problem: I need some host that doesn't mind being pinged but with several seconds of RTT (that's thousands milliseconds; from Moscow, but it probably doesn't matter). Amazingly, I could not easily find one. I even tried to ping-scan IP ranges of Antarctica, but those hosts that responded did so in fraction of a second. Not much luck with North Korea (mostly down), Taiwan (internet is much better than it used to be) and several other suspect countries. (Though I'm not sure my tests are correct, since firewall processing of such long response times is one of the things I'm trying to find out.)
Is it possible to somehow find one using RIPE ATLAS, preferably without ping-scanning whole internet? Would be especially great if it responded to other types of ping beside ICMP.
I haven’t tried such long delays, but FreeBSD’s dummynet allows you to create pipes with arbitrarily long delays, percentage of packet loss, etc Best regards, Borja.